.zhixun-bg1,.zhixun-bg2,.zhixun-bg3,.zhixun-bg4,.zhixun-bg5{
    position: relative;
    width: 100%;
    height: auto;
    overflow: hidden;
}

.zhixun-bg2,.zhixun-bg3,.zhixun-bg4,.zhixun-bg5{
    margin-top: 5px;
}

.zhixun-bg1 .bg-photo {    
    width: 100%;
    height: auto;
    display: none;
    overflow: hidden;
}

.zhixun-bg1 a {
    display: block;
    width: 100%;
    height: auto;
    position: absolute;
    top: 0;
    left: 0;
}

.zhixun-bg2 .bg-photo {   
    width: 100%;
    height: auto;
    display: none;
    overflow: hidden;
}

.zhixun-bg2 a {
    display: block;
    width: 100%;
    height: auto;
    position: absolute;
    top: 0;
    left: 0;
}
.zhixun-bg3 .bg-photo {  
    width: 100%;
    height: auto;
    display: none;
    overflow: hidden;
}

.zhixun-bg3 a {
    display: block;
    width: 100%;
    height: auto;
    position: absolute;
    top: 0;
    left: 0;
}
.zhixun-bg4 .bg-photo {   
    width: 100%;
    height: auto;
    display: none;
    overflow: hidden;
}

.zhixun-bg4 a {
    display: block;
    width: 100%;
    height: auto;
    position: absolute;
    top: 0;
    left: 0;
}
